couple radiaion and reaction
 

Dear friends
I have implemented a simple 1st order reaction by writing a udf. and i have used the Do method for radiation separately. now I wanna couple my radiation with the reaction and I dont know how? my reaction is r=k*c and now i need r=k*c*I (I stand for intensity ). does anyone have any idea? or how can I access the radiation data in my udf code?

thanks in advanced

Hello,
Have you solve your problem? I have the same question now. Could you share with me? Really thanks.